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e92030239a
Simplify the Linux accept4 implementation based on the assumption that it is available in some way. __ASSUME_ACCEPT4_SOCKETCALL was previously unused, so remove it. For ia64, the accept4 system call (and socket call) were backported in kernel version 3.2.18. Reflect this in the installation instructions.
42 lines
1.5 KiB
C
42 lines
1.5 KiB
C
/* Copyright (C) 2008-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2008.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <signal.h>
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#include <sys/socket.h>
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#include <sysdep-cancel.h>
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#include <sys/syscall.h>
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#include <socketcall.h>
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#include <kernel-features.h>
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int
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accept4 (int fd, __SOCKADDR_ARG addr, socklen_t *addr_len, int flags)
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{
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/* Do not use the accept4 syscall on socketcall architectures unless
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it was added at the same time as the socketcall support or can be
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assumed to be present. */
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#if defined __ASSUME_SOCKETCALL \
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&& !defined __ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL \
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&& !defined __ASSUME_ACCEPT4_SYSCALL
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return SOCKETCALL_CANCEL (accept4, fd, addr.__sockaddr__, addr_len, flags);
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#else
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return SYSCALL_CANCEL (accept4, fd, addr.__sockaddr__, addr_len, flags);
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#endif
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}
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